<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>22. 使用原子表匹配所有内容</title>
    </head>
    <body>

        <script type="text/javascript">
            let hd = `
            houdunren
            hdcms
         `
         console.log(hd.match(/[\s\S]+/)[0])
        </script>
    </body>
</html>
